Improvement in wash-boilers



NA PETERS. FHOTOYLITHDGRAPHER. WASHINGTON. D. CA

UNITED STATES PATENTOEEICE.

STEPHEN S. MILES, OF DELTA, NET YORK.

IMPROVEMENT IN WASH-BOILERS.

Specification forming part of Letters Patent NO. 111,860, dated February 14, 1871.

To all persons to whom these presents shall come Be it known that l, STEPHEN S. MILES, of Delta, in the county of Oneida and State of New York, have invented Improvements in W ash-Boilers; and that the following is a full and complete description of the same, reference being had to the accompanying drawing.

The present invention relates to that class of wash-boilers constructed with a false bottom, so as to secure a circulation ot' the water from beneath the false bottom thereof through an upwardly-extending tube or tubes communicating with the chamber of the boiler in vwhich the clothes are placed.

Heretofore the false bottom ot these boilers has been provided with a series ofperforations, to allow the water to pass back into the chamber between the two bottoms of the boiler, for being again carried up through the tubes communicating therewith; but in the practical operation of such boilers it has been found that there was, to a greater or lesser extent, a back action or resistance through the perforations to the free passage ofthe water, detracting more or less from the force of action through the said tubes.

lo entirely prevent this back action is the object of the present invention; and the invention consists of the said false bottom, constructed to allow of the passage of the water in only one and the proper direction by forming openings within the same that are arranged to open to the downward passage of the water by the pressure thereof, while to the passage of the water in an upward direction they will be closed.

In the accompanying drawing my improvements in wash-boilers are illustrated, Figure l being a central longitudinal section of the same; Fig. 2, a central transverse section; Fig. 3, a plan view, but on a reduced scale; and Fig. 4, al transverse section in plane of line w a', Fig. l.

A in the drawing represents the body of an ordinary wash-boiler; B, the side and C the bottom plate. Within the boiler A is placed a falselbottom plate, D, provided with a iian ge, E, around it, to secure a chamber, F, between the true bottom C and false-bottom plate D. G, upwardly-extending tubes, one at each end of false-bottom plate D, communicating with the chamber F at their lower ends, and with the clothes-chamber H of the boiler at their upper ends.

The false-bottom plate D, at I, between the two tubes or spouts G, is left ope-n, and within the openings is arranged a series of angularshaped plates or partitions, J, extending from end -to end ot' the opening I, parallel with each other andat equal and regular distances apart, the edges ul of the several partitions meeting and producing channels b in thc upper face ot the false bottom D. These partition-plates J, in the line of their apex and at their ends c, are fastened to the portions K ot' the false-bottom plate D, extending by the sides d below the plane ot' the plate D, meeting at their edges a, as before stated, between which edges a and the said point of fastening, c, the sides of the several partitions are free and not confined.

The channels b, formed by the several partitions I, are closed at their ends by means of plates M, fastened to the under side of portions K of bottom D, across the width ofthe same, said plates M being eut out so as to leave the channels made by the under side of the an gular partitions J clear at their ends for the free passage of the water from one end to the other of the false bottom.

As the partition-plates J are left free at their edges a by the pressure of the water above, as well as the suction of the water through the bottom D, produced by the continual an d stron g flow oi' the water through the tubes G, they are sprung or forced open, allowing the water to ilow from the clothes-chamber H oi' the boiler to the chamber between the true and false bottom plates; whereas to the upward iiow of the water in the chamber, bythe action of the water itself, they are closed, they only allowing, as is thus obvious, the passage of the water in only one and that the proper direction.

The partition-plates J may be more or less in number, and they may be made, in each instance, ot' a single piece of metal bent into the proper shape, or of two pieces of metal joined together along the apex-line c and, furthermore, the two sides of each angular partition may be separate from each other and hinged together along` the apex-linee, and a spring or springs provided and arranged in a suitable manner to secure substantially the same operation of the partitionsthat is, their opening and closing, as hereinbefore specified.

Having thus described my invention, what I claim as new, and' desire to secure by Letters Patent, is-

The false bottom plate D, constructed of one or more angular partition-plates, J, ar-

ranged to open and close along their edges a, substantially as described, for the purpose specified.

The above specification of my improvements in Wash-boilers signed by me this 28th day of October, A. D. 1870.

` S. S. MILES. Witnesses: f

ALBERT W. BROWN, 'FANNIE M. BROWN. 

